code: def df_election():
      df_election = pd.read_csv(
          os.path.join(
              TEST_SETS_DIRECTORY,
              "Bundestagswahl",
              "Bundestagswahl.csv",
          )
      )
  
      return df_election
  
imports: import os
  import numpy
  import pandas
  import pytest
  import pandas_bokeh
label_desc: Use image node_id 6 for calling a global function with example usage: df_election() and returns: df_election